Disclosed are a cleaning system and a control method thereof. The cleaning system includes a self-propelled cleaning robot, a safety guard connector, a detector assembly; where the self-propelled cleaning robot and the safety guard connector are detachably connected with each other, and the detector assembly detect whether the self-propelled cleaning robot and the safety guard connector being connected with each other or not.

A twist-lock connector system includes a first twist-lock connector including a first connector housing holding first twist-lock contacts at a first rotate-to-mate interface. The first twist-lock connector includes a first high speed electrical connector. The first high speed electrical connector is movable relative to the first connector housing between a home position and a rotated position. The first twist-lock connector includes a biasing member coupled to the first high speed electrical connector to bias the first high speed electrical connector to the home position. The twist-lock connector system includes a second twist-lock connector having a second connector housing holding second twist-lock contacts and a second high speed electrical connector at a mating interface.

A female welding lead connector including a safety cover hingedly connected to a main body of the female welding lead connector. The safety cover preferably includes a fastener for fastening the cover to a closed position, shielding a female welding lead receptacle inside the main body of the female welding lead connector.

A female welding lead connector including a safety cover hingedly connected to a main body of the female welding lead connector. The safety cover preferably includes a fastener for fastening the cover to a closed position, shielding a female welding lead receptacle inside the main body of the female welding lead connector.

A rechargeable battery jump starting device having detachable positive and negative cables. The rechargeable battery jump starting device, including a rechargeable battery connected to a positive cam-lock cable connecting device and a negative cam-lock cable connecting device. The rechargeable battery jump starting device can include a highly electrically conductive frame connecting the rechargeable battery to the cam-lock cable devices.

A connector, a bayonet-style connector, and methods for using the connector or bayonet-style connector are provided. At least one connector includes a receiver having an inner volume to receive a connector, and having a pawl; and a pushbutton or actuator that operates to move or unlock the pawl so that a user can insert and lock and/or unlock and remove the connector using only a single hand of the user. At least one bayonet-style connector includes a connector portion having an opening; a receptacle portion that operates to slidingly accept the connector portion and that has a pawl that operates to engage with the opening to lock the connector portion in place; and an actuator that operates to impart force on the pawl to unlock the connector portion so that a user can remove the connector portion using only one hand of the user.

A common battery for providing power to a first of a plurality of radios. The plurality of radios includes at least a first radio and a second radio. The common battery has a size of the smallest of at least two batteries. The common battery comprises a raised concentric wall edge for enabling the common battery to lock in place when used in place of a larger of the first battery and the second battery, such as within a Vehicular Adaptor Amplifier. The raised concentric wall edge has a height of a difference between a height of the first battery and a height of the second battery. In one variation, the common battery comprises a circular piloting interface that uses an outside radius of a respective bayonet connector on the first and second radios to align the common battery to the respective radio.

A common battery for providing power to a first of a plurality of radios. The plurality of radios includes at least a first radio and a second radio. The common battery has a size of the smallest of at least two batteries. The common battery comprises a raised concentric wall edge for enabling the common battery to lock in place when used in place of a larger of the first battery and the second battery, such as within a Vehicular Adaptor Amplifier. The raised concentric wall edge has a height of a difference between a height of the first battery and a height of the second battery. In one variation, the common battery comprises a circular piloting interface that uses an outside radius of a respective bayonet connector on the first and second radios to align the common battery to the respective radio.

A rechargeable battery jump starting device having detachable positive and negative cables. The rechargeable battery jump starting device, including a rechargeable battery connected to a positive cam-lock cable connecting device and a negative cam-lock cable connecting device. The rechargeable battery jump starting device can include a highly electrically conductive frame connecting the rechargeable battery to the cam-lock cable devices.

A rechargeable battery jump starting device having detachable positive and negative cables. The rechargeable battery jump starting device, including a rechargeable battery connected to a positive cam-lock cable connecting device and a negative cam-lock cable connecting device. The rechargeable battery jump starting device can include a highly electrically conductive frame connecting the rechargeable battery to the cam-lock cable devices.